<p>Tight List:</p>
<ul>
<li>
<h1>Header1</h1>
Line 1-2 - <strong>not</strong> a header <em>or</em> paragraph!</li>
<li>
<h1>Header2</h1>
Line 2-2 - not a header or paragraph!</li>
</ul>
<p>Loose List:</p>
<ul>
<li>
<h1>Header1</h1>
<p>Line 1-2 - <em>a</em> paragraph</p>
</li>
<li>
<h1>Header2</h1>
<p>Line 2-2 - a paragraph</p>
</li>
</ul>